{"id":8943,"date":"2021-05-27T06:41:43","date_gmt":"2021-05-27T06:41:43","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=8943"},"modified":"2021-05-27T06:41:43","modified_gmt":"2021-05-27T06:41:43","slug":"ceramic-foam-filters-for-cast","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/pt\/ceramic-foam-filters-for-cast\/","title":{"rendered":"Filtros de espuma cer\u00e2mica para fundi\u00e7\u00e3o"},"content":{"rendered":"<p>Os filtros de espuma cer\u00e2mica para ligas de alum\u00ednio fundido podem reduzir significativamente as impurezas. Eles n\u00e3o apenas melhoram a apar\u00eancia das pe\u00e7as fundidas ap\u00f3s a desmoldagem, como tamb\u00e9m diminuem a ocorr\u00eancia de produtos com defeito e at\u00e9 reduzem o trabalho de manuten\u00e7\u00e3o. Com o uso de um filtro para metal fundido, \u00e9 poss\u00edvel remover e purificar diversas impurezas presentes na massa fundida. Esse tipo de fundi\u00e7\u00e3o conta com uma variedade de ligas, o que permite melhorar as propriedades mec\u00e2nicas e a resist\u00eancia \u00e0 fadiga, reduzir os custos de processamento, encurtar o tempo de processamento, melhorar a usinabilidade e prolongar a vida \u00fatil das ferramentas de usinagem.<\/p>\n<p>Em geral, existem tr\u00eas maneiras de remover inclus\u00f5es do alum\u00ednio fundido: precipita\u00e7\u00e3o, flota\u00e7\u00e3o e filtra\u00e7\u00e3o. Quando o tamanho das inclus\u00f5es \u00e9 inferior a 90 \u03bcm, \u00e9 menos prov\u00e1vel que elas se depositem no fundo do forno sob a a\u00e7\u00e3o da gravidade. A purifica\u00e7\u00e3o tradicional a g\u00e1s, o refinamento em linha e outros processos podem fazer com que algumas inclus\u00f5es flutuem at\u00e9 a superf\u00edcie do alum\u00ednio fundido, mas quando o tamanho das inclus\u00f5es \u00e9 inferior a 30 \u03bcm, a chance de flutua\u00e7\u00e3o \u00e9 muito pequena.<\/p>\n<p>A vantagem do filtro de espuma cer\u00e2mica \u00e9 que ele consegue reter inclus\u00f5es muito menores do que o tamanho de seus poros. O princ\u00edpio pelo qual as inclus\u00f5es passam pelos filtros de fundi\u00e7\u00e3o pode ser atribu\u00eddo a tr\u00eas mecanismos: modo de peneiramento, modo de forma\u00e7\u00e3o de bolo e modo de profundidade.<\/p>\n<p>Os filtros de espuma cer\u00e2mica para fundi\u00e7\u00f5es de alum\u00ednio fundido s\u00e3o capazes de filtrar esc\u00f3rias e impurezas da solu\u00e7\u00e3o met\u00e1lica muito melhor do que outros filtros, e sua filtragem exerce um efeito f\u00edsico e qu\u00edmico abrangente. As inclus\u00f5es de grande porte s\u00e3o fisicamente separadas e retidas na superf\u00edcie do filtro. Devido \u00e0 afinidade qu\u00edmica, as inclus\u00f5es de pequeno porte s\u00e3o adsorvidas na superf\u00edcie, nas paredes laterais ou nos orif\u00edcios do filtro. Portanto, ele pode filtrar com efic\u00e1cia impurezas de v\u00e1rios tamanhos, incluindo impurezas muito menores do que os orif\u00edcios do filtro. O <a href=\"http:\/\/www.alalloycasting.com\/pt\/ceramic-foam-filter-for-aluminum\/\">filtro de espuma cer\u00e2mica para alum\u00ednio<\/a> tamb\u00e9m pode suavizar o fluxo turbulento do metal fundido, reduzir a turbul\u00eancia e fazer com que o metal fundido flua de maneira suave e uniforme.<\/p>","protected":false},"excerpt":{"rendered":"<p>Ceramic Foam Filters for cast aluminum alloy can greatly reduce impurities. It not only can reduce the appearance of castings after demolished, but also can&hellip;<\/p>","protected":false},"author":1,"featured_media":8950,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20],"tags":[],"class_list":["post-8943","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ceramic-foam-filter"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Ceramic Foam Filters for Cast Aluminum -sales@alalloycasting.com<\/title>\n<meta name=\"description\" content=\"The Ceramic Foam Filters for cast aluminum foundry is capable of filtering metal solution slag far better than other filters.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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